| X12CrMoWVNbN10-1-1转子钢室温低周疲劳特性 |
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| 引用本文： | 吴海利,朱月梅,贾国庆.X12CrMoWVNbN10-1-1转子钢室温低周疲劳特性[J].北京科技大学学报,2011(7):841-845. |
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| 作者姓名： | 吴海利 朱月梅 贾国庆 |
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| 作者单位： | 上海电气电站设备有限公司上海汽轮机厂; |
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| 摘 要： | 采用应变控制对超超临界汽轮机转子钢X12CrMoWVNbN10-1-1进行室温低周疲劳试验,并对试验结果进行了讨论.拟合了循环应力-应变曲线和应变-寿命曲线,得到该材料的室温低周疲劳特性参数,包括Ramberg-Osgood参数和Manson-Coffin参数,推测出该材料的转变寿命.对低周疲劳试验开始和结束两个阶段的拉压应力峰值、拉压卸载弹性模量以及迟滞回线面积进行了对比分析,并对不同应变幅控制的低周疲劳对应的应力变化进行了讨论.
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| 关 键 词： | 耐热钢 低周疲劳 应变控制 疲劳寿命 转子 |
Low cycle fatigue behaviors of X12CrMoWVNbN10-1-1 steel for rotors at room temperature |
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| WU Hai-li,ZHU Yue-mei,JIA Guo-qing Shanghai Turbine Plant,Shanghai Electric Power Generation Equipment Co.Ltd.,Shanghai ,China.Low cycle fatigue behaviors of X12CrMoWVNbN10-1-1 steel for rotors at room temperature[J].Journal of University of Science and Technology Beijing,2011(7):841-845. |
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| Authors: | WU Hai-li ZHU Yue-mei JIA Guo-qing Shanghai Turbine Plant Shanghai Electric Power Generation Equipment CoLtd Shanghai China |
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| Institution: | WU Hai-li,ZHU Yue-mei,JIA Guo-qing Shanghai Turbine Plant,Shanghai Electric Power Generation Equipment Co.Ltd.,Shanghai 200240,China |
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| Abstract: | Low cycle fatigue(LCF) experiments were carried out under strain control at room temperature on X12CrMoWVNbN10-1-1 steel for rotors used in ultra-supercritical turbines.Some LCF parameters of this material at room temperature including Ramberg-Osgood parameters,Manson-Coffin parameters and transformation life were obtained by fitting the cyclic stress-strain curves and strain-life curves.The peak tensile stress,the peak compression stress,the unloading elasticity moduli of tension and compression,and the ar... |
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| Keywords: | heat resistant steel low cycle fatigue strain control fatigue life rotors |
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